Oil-injection-control device



March 5, 1929. l w, G, oxE ET ALv 1,704,079

0`IL INJECTION COTROL DEYICE Filed July 29. 1926 2 Sheets-Sheet l w. G. coxE ET AL 1,704,079

March 5, 1929.

OIL INJECTION CONTROL DEVICE 2 Sheets-sneer 2 Filed July 29. 1926 Patented Mar. 5, 1929.

1,704,079. .UNITED STATES PArEN-'rx OFFICE.

WILLIAM GRISCOIE COXE, OFl IPHIIJADZLPHIA,

LAGERGREN, OF WILMINGTON, DELAWABE PENNSYLVANIA; AND GUs'rAv n. HELENBAEB. coxn EXECUTRIX F SAID WILLIAM GRISCOIMI COXE, DECEASED.

` orL-INJncTroN-conrnor. nnvroiiA Application led July 2S, 1926. Serial No. 125,724.

is to provide a vary the length of the injection period or in 7 terval, and consequently vary the content of the oil injection.

Sti-ll another object is to provide for Huid operation of the fuel inlet valve, to thus reduce the workingload on the tripping mechanism to a minimgignland avoid the possibilit of slowing up or interfering with the parts '20 `o "the mechanism operating the trip.

VlVith the above the other objects in view, which will be apparent to those skilled in the art, our presentv invention includescertain novel features of construction and combinations of parts which will be set forth in connection with the drawing In the drawings Y v t Figure 1 is a view in elevation of thecontroldevice from vone side, with parts in sec tion. A

` Fioure 2 is a view in elevation taken` substantially4 at right angles.

Figure 3 is a vertical sectional view through vthe control valve case.

Fi ure 4 is a sectional view taken substantioaly at rightN angles to the showingj in igure 5 lis a fragmentary sectional view showing a mdilied typeof'injeotion period 'adjustment means.

Fi re ,6 is audiagra'nimatic view ifflustrating tL e method of variation of the injection' period.

This device is adaptable for use infeonjunction with a combined steam and Diesel engine of the-type illustratedin'our co-pending application, Serial No. 698,890, and t oother types of Diesel engines and in connectionwith ot ermechanism requiring periodic oil` or liquid injections, the main essential being that the engine or other'mechanism be of the type having av reciprocating piston rod, valve rod,

p or other like part. In theA present instance we have shownour device mounted in conjunction 12. The case 3 has .the oil close the discharge pi with vthe bearing block 1 forming a guide for the reciprocating stem 2, the stationary parts being mounted upon and carried bythe bearing block. p

. A valve case3, which is mounted at a suitable point has oil supply pipe 4 leading thereactuated and f to and oil discharge pipe 5 leading therefrom to the injection valve of the Diesel engine or other point where the o il is needed. A fluid cylinder 6 is spaced from the valve case Sand has the pipes and 8 connected with opposite ends thereof for alternate supply ofscavenging air, o1' other suitable fluid, under low pressure. At Ythe remaining ends these pipes 7 and 8 are connected with a slide valve case 9, which has inlet and outlet pipes l0 and 11 connected therewith. The inlet pipe is led from a tank,

or other suitable source of supply for com` pressed air, or other fluid under low pressure,

and the outlet or exhaustxpipe 11' is extended to the desired exhaust position.

Referring particularly to Fig. 3, the oil control valve .is of a type adapted toV be spring closed and to be opened by the rocker shaft supply and discharge pipes 4 and 5. opening thereiiito at substantially right angles and the-bore 13 is provided within the case substantially in mounted at a point somewhat line with t e outlet. passage through the discharge pipe and the nipple 14 connecting the same with the valve case. A valve seat niember 15 is mounted. adjacei'l the inner end of nipple 14 and a valve 16 in mounted for reciprocating movement lwithin the bore 13 to close against the valve seat of member 15 to thus e.l The remaining end of bore 13 is closed y a plug 17 having a central bore at its inner ,end to guide valve 16, and a coil spring 18 fitted around the valve stein bears between this plug 17 Vand the collai` or flange 19 on the stem of the valve 16" to `hold this valve Anormallyclosed against the seat The rocker shaft 12 has a rockerv portion 20 thereon vadjacent the stem of valve 16- nd this rocker portion is1 so formed that as shaft 12 is given a partial revolution the v outer end of the piston rod 22 and travels in guide ways 25. An arm 26 loosely mounted on rocker shaft 12 is provided with an elo-ngated slot 27 at its tree end to slidably receive a block pivoted on pin 28 carried by cross head 24, and as the piston 21 travels within cylinder 6 this arm or lever 26 will be oscillated. 'lhe rocker arm 29, secured on the rocker shaft 12 has adjusting bolts 3() and 31 to engage on opposite sides against the arm or lever 26, and this arm or lever is thus adjustahly locked in conjunction with rocker shaft l2. A. rocker arm 32 is fixed in conjunction with arm 29 to extend on the opposite side.

A slide valve 33 mounted within the case 9 is adapted to control the tluid supply and exhaust to and from cylinder G, and this slide valve has a stem 34; extending from the case and provided adjacent its free end with a hearing 35. A. cross linllr 3G is pivoted in its middle portion in the bearing 35 and has one end extended to be substantially in line with the rocking lever 32. A. link 37 connects this end ot lever 32 with the outer end ot rocking lever 36 and this lever 36 is normally moved, by sprino 38, to substantially7 the position shown in ig. l.

A. tripping latch 39 is given swinging mounting on a bearing carried by ring i() secured on the stem 2, swinging movement ot this latch being resiliently opposed by spring il and adjusting screw 42 being provided to adjust the angle at which the projecting end oit the latch entends from the stem 2.

A. bearing portion 43 is carried on the bearing'bloclr l and adjusting member la is given sliding mounting therein tor movement toward and away troir` the stem 2. fit its outer end this adjusting member is provided with a steep-pitched thread as indicated at 45, 'and an internally Vthreaded collar 46 is revolubly carried by the bearing portion i3 to move adjusting member dei endwise as this collar is turned through the medium ot handle et?. Adjusting member afl has a bearing pin Li8 at its inner end and a trip finger a9 is pivotally mounted on this pin d8. The trip tinger is connected with the tree end of rocking lever 36 through a linlr 50, this linkv being adjustable as to its length, through adjusting sleeve 5l.

ln Figure 5 modified form of injection period adjusting mechanisms. vrlhe Iadjusting member 52 is fitted within a sleeve 53, and adjusting nut 54 is swiveled in conjunction with this sleeve and is itted upon the steep-pitched thread 55 so that as handle 56 is swung the adjusting member 52 will be moved endwise through sleeve 53. Sleeve 53 is externally threadedon a steep pitchand is keyed for endwise sliding movement in bearing 57. Adjusting nut 58 is swiveled in the bearing 57 and fits the threaded portion of sleeve 53. Operating we have illustrated a slightly megeve handle 59 is provided on nut 58 and this operating handle can be connected with rnechanically operated levers or with other mechanism by which the nut will be automatically turned to move adjusting member 55 and adjust the injection interval to suit different requirements of operation.

As diagrammatically shown in Figure 6, the full and dotted line positions of the latch member 39 are the normal extremes ot movement, and as the bearing pin a8 is adjusted forward and back, to different points between out7 and fulh it will be appreciated that the trip finger 4:9 will Jr'all from latch member 39 at different points as indicated on the verse tical scale. At different points of elevation the period ot injection will be lengthened or shortened, and the cubical contents of the oil inject-ion will be varied substantially as indicated by the scale.

`While we have herein shown and described certain specific embodiments ot our invention and have suggested only certain possible modiications, it will be appreciated that changes and variations can be made to satisfy difterent requirements of use, without departing from the spirit and scope of this invention.

lille claim:

l. An oil injection control device comprising a control valve, fluid actuated valve operating means, and a trip operated control for the fluid actuated means.

2. an oil injection control device comprising a normally closed controlv valve, valve opening means, iiuid actuated means associ- 10o ated with the valve opening means to operate the same, a fluid valve, and trip means controlling the operation ot" the liuid valve.

3. "in Oil injection control device comprising a control valve, liuid actuated valve oper- 105 ating means trip actuated means controlling the iiuid actuated means, and means to adjust the trip means to vary the period ot injection.

4. An oil injection control device tor use with a mechanism having a reciprocating U0 part comprising a. control valve, fluid actuated valve operating means a trip latch carried by the reciprocating part, a trip finger to be engaged h f the trip latch to render operative the fluid actuated means tor the period ot 115 injection, and means to adjust the position ot thetrip finger to vary the length ot the injection period.

5. an oil injection control device compris-- ing a control valve, fluid actuated means to 12o move the control valve to the open position, a duid control valve governing theV operation of the iiuid actuated means, and adjustable A trip means to determine the operation of the uid control valve. y

6. An oil injection control device comprising an oil supply line, a control. valve in said 1line normally closed, auid cylinder, a piston in said cylinder connected to move said valve to an open position, a fluid control valve, trip 13G actuated means operating the control valve, and means to adjust the trip operated means.

7 In combination with a fluid actuated mechanism having a reciprocating part, a trip latch on the reciprocating part, a fluid control valve given stationary mounting, trip control means actuating the control valve, and a trip finger mounted in positionl to be engaged by th'e trip latch as the moving part reciprocates. 1

8. In combination with a fluid actuated mechanism having a reciprocating part, a trip latch on the reciprocating part, a 'fluid control valve given stationary mounting, trip control means actuating the cont-rol valve, a trip finger mounted in position to be engaged by the trip latch as the moving part reciprocates, and means to adjust the posit-ion of the trip finger With relation to the trip latch.

9. In combination with a mechanism having a reciprocating part, a trip latch carried by the reciprocating part, an oil supply line, an oil cont-rol valve in said line normally closed, a fluid cylinder, a piston' mounted 'for reciprocation in said cylinder, aconnection from said piston to open the control valve, a fluid supply to the fluid cylinder, a fluid control valve in the supply, trip operated means actuating' the fluid control valve, and a trip finger in position to be engaged by the trip latch.

10. In combination With a mechanism having a reciprocating part, `a trip latch carried by the reciprocating part, an oil supply line, an oil control valve in said line normally closed, a fluid cylinder, a piston mounted for reciprocation in said cylinder, a connection from said piston to open the control valve, a fluid supply to the fluid cylinder, a fluid control valve in the supply, trip operated means actuating the fluid control valve, a trip finger in position to be engaged by the trip latch, and means to adjust the position of the trip finger With respect to the trip latch. In testimony whereofl We hereunto affix our signatures.

` WILLIAM GRISCOM COXE.

GUSTAV M. LAGERGREN.4 

